Overview As engine technology changes so does the need for ignition systems and a way to test them. MSD's ignition tester now has the ability to test not only traditional single coil ignition systems but also coil-per-cylinder applications. The 89981 tester even gives you the ability to create an RPM run and let the tester run through the RPM range. This allows you to see the ignition activate any accessories you may be running such as shifters, nitrous solenoids and more. Testing your ignition system has never been easier or more precise. Test both single channel and coil per cylinder ignitions Features Spark Plug tester included Battery Voltage display Electronic / Points, and Magnetic Trigger Inputs Easy hookup Adjustable dwell / duty-cycle output Compact design Settings for 10 different crank types – 1-cyl, 4-cyl, 6-cyl, 6-cyl odd-fire, 8-cyl, 12-cyl, 24x, 58x, 12-1 & 36-1 Cam Sync Output for testing DIS / EFI systems Backlit, large and easy to read display Single knob controls all functions Engine speed sweep test mode Power Grid adapter harness included
